Wheel.



No. 884,093; PATBNTBD APR. 7, 190s.

- W. G. KIRGHHOPF.

WHEEL.

nrmu'rron FILED un. sa. 1905.

lll

nzzze/SH faz/@ of l UNTTED. sTATEs PATENT oEEroE.

WILLIAM G. KIRCI'IIAIOFF, OF CHICAGO, ILLINOIS, 'ASSIGNOR TO INTERNATIONAL REGISTER COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

f WHEEL.

Specification of Letters Patent.

Patented April 7, i908.

Application filed March 29, 1905'. Serial No. 252,644.

To all whom it may concern.'

Be it known ,that I, WiLLIAn G. Kincn- HOFF, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Wheels, of which the fol-lowing is a-specification.

My invention relates to improvements in wheels, and has for its object to provide al the several figures.

My present invention relates to wheels which may be used for lvarious devices, but which are particularly adapted to be used in connection with recording or registering devices. y

In carrying out my invention I take a piece of sheet metal A of the desired size. This piece of sheet metal is painted or enameled, and provided with a series of numerals, from Zero to nine inclusive. This piece of sheet metal may be treated in any usual manner yto properly paint or enamel it, and this is preferably done before the metal is bent into shape. The periphery of the sheet is provided opposite each number with a flat face B, andbetween these flat faces is preferably a shorter fiat face C,

Triangular pieces of metal are cut out between leach figure and opposite the short flat faces C, as shown at D, thus leaving a connecting piece E between each triangular opening and the outer edge of the device; Tie periphery vor outer portion F of the sheet is then bent at right angles to the central part by means of dies, or the like, as shown in Figs. 2 and 3, so that a series of flat faces are provided ,upon which the numerals show when looking at the edge of the wheel. Pieces .of metal E are looped and bent against the inner face of the bent over portion, as shown in Figs. 2 and 4, so as to strenv then the construction and make the" comp eted wheel rigid; The metalis preferably cut out so as to form triangular openings D, and such openings are of such size. and theJ amount of metal turned over is such that the edges of said triangular openings4 come together when the outer edge, of the sheetis turned over, as shown in Figs. 2, 3 and 4. 4It will be seen that the flattened faces upon which the numbers are laced are connected together by the meta at 'both edges, the metal between said flattened faces being cut away. The drawings show the relative proportions of the parts.

It will thus be seen that the outer edge of the metal is continuous and remains continuous when the wheel is formed, and that this ycontinuous edge gives strength and durability to the wheel. It is, of course, evident that changes may be made in the construction without departing from the spirit of my invention, and inthe method of completing the Wheel and the sequence of the various steps, all of which will occur to those versed in the art. I

The wheels when formed may be placed upon a shaft or other' suitable supporting part, there being provided an opening A1 for this purpose.

In the process of forming the wheels the connecting pieces E are formed into loops projecting inwardly, as shown at the bottom of Fig. 2, and they may be left in this sha e if desired, although if `a mechanism is ocated within the wheel more space is secured by bending said strengthening loops against the inner face of the bent over portion.

I claim: y

1-. A wheel consisting of a piece of vsheet metal-with an edge free from indentations, theouter portion being bent at right angles to the middle portion so as to form a series of faces.

2. A wheel made up of a sheet of metal having its outer edge bent at an angle to the ceny trai part so as to form aseries of faces in'a plane substantially at right angles to said central part, said faces connected together by the metal at both edges, the metal between the faces cut awaybetween said edges. 3. A wheel made from a sheet of metal having a continuous periphery, a portion of the metal between the periphery and the cenart, said connecting ieces ormin'g loops gent against the inner ace of the bent over portion 4. A wheel consisting of a iece of thin metal With-an unbroken edge, t e outer ortion being bent at right angles tothe mi dle ortion so as to form a series of faces, said aces separated at their sides between their ends, both ends of each face being connected with the adjacent face.

5. A wheel consisting of a piece of sheet metal having a continuous eriphery, a por-- tion ofthe metal between t e periphery and the center removed at intervals so as to form o enings, connecting ieces of metal between Nt e openings and t e said periphery, the

edge of said sheet of metal bent at an angle' to the central part, said connecting pieces formed into inwardly projecting strengthening loops.

6. A wheel consisting of` a piece of sheet metal, the outer edge thereof free from indentations, the outer portion, containing said outer edge free from indentationsbeing bent substantially at right angle to the middle ortion of the wheel, the metal at the center eing cut away so as to form an opening,

` WILLIAM G. KIRCHHOFF.

Witnesses:L

HoMER L. KRAFT, E. K. REYNOLDS. n 

